VS

Citroen C5 X vs Mercedes B Class comparison

Compare performance (145 HP vs 238 HP), boot space and price (39,400 £ vs 33,100 £ ) at a glance. Find out which car is the better choice for you – Citroen C5 X or Mercedes B Class?

Citroen C5 X vs Mercedes B Class: Key differences

Citroen C5 X

4.2 (4 Reviews)
rate
  • somewhat more trunk space
details

Mercedes B Class

4.9 (5 Reviews)
rate
  • a bit cheaper
  • markedly more power
  • significantly quicker 0–100 km/h
  • moderately lighter
details

All details on performance, efficiency, range and trunk space can be found in the technical comparison below – including user reviews for both models.

By Achim Sedelmaier

Here’s where it gets real: The technical differences in detail

C5 X

Costs and Efficiency:

Looking at overall running costs, both models reveal some interesting differences in everyday economy.

Mercedes B Class is a bit cheaper – starting at 33,100 £ , while the Citroen C5 X costs 39,400 £ . That’s a price difference of around 6,299 £.

Both cars consume an average of 5.1 L/100km – no difference here.

B Class

Engine and Performance:

Under the bonnet, it becomes clear which model is tuned for sportiness and which one takes the lead when you hit the accelerator.

When it comes to engine power, the Mercedes B Class offers markedly more power – delivering 238 HP compared to 145 HP. That’s roughly 93 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes B Class is significantly quicker – completing the sprint in 6.5 s, while the Citroen C5 X takes 10.4 s. That’s about 3.9 s quicker.

There’s also a difference in torque: the Mercedes B Class delivers considerably more torque with 400 Nm compared to 230 Nm. That’s about 170 Nm more.

C5 X

Space and Everyday Use:

Beyond pure performance, interior space and usability matter most in daily life. This is where you see which car is more practical and versatile.

Both vehicles offer seating for 5 people.

In terms of curb weight, Mercedes B Class is moderately lighter – 1,405 kg compared to 1,591 kg. The difference is around 186 kg.

Looking at boot space, the Citroen C5 X offers somewhat more boot space – 545 L compared to 455 L. That’s a difference of about 90 L.

When it comes to payload, the Mercedes B Class carries noticeably more – 550 kg compared to 399 kg. That’s a difference of about 151 kg.

Who wins the race in the data check?

The Mercedes B Class stands well ahead of its rival in the objective data comparison.
This result only shows which model scores more points on paper – not which of the two cars feels right for you.

from £33,100
B Class

Mercedes B Class

  • Engine Type Petrol MHEV, Diesel
  • Transmission Automatic
  • Drive Type Front-Wheel Drive, All-Wheel Drive
  • Power HP 116 - 238 HP
  • Consumption L/100km 5.1 - 6.9 L/100km
details

Frequently compared as well

Mercedes B Class
Mercedes GLA
VS
The Mercedes B‑Class and Mercedes GLA target buyers who want Mercedes practicality with premium touches, but they take different paths: the B‑Class is a spacious, hatchback-style people carrier while the GLA is a compact crossover with a higher ride height and sportier stance. This comparison looks …
Mercedes A Class
Mercedes B Class
VS
The Mercedes A‑Class is the sporty, tech‑savvy compact that thrills with sharp handling and a slick cockpit, while the Mercedes B‑Class trades a bit of attitude for towering practicality, roomier seats and a more useful boot. Choose the A‑Class if you want driving fun and style; pick the B‑Class if …
Citroen C5 X
Mercedes B Class

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Citroen C5 X

Citroen C5 X combines the poise of a sleek crossover with the practicality of an estate, delivering a calm, comfortable cabin that feels designed for long, relaxed journeys rather than racetrack drama. If you want a car that pampers passengers, swallows everyday luggage and glides over rough roads like a diplomat dodging awkward questions, this is your kind of transport.

details
C5X_PHEV_UK_2022_EXT (21)
C5X_PHEV_2022_EXT (12)
C5X_PHEV_2022_EXT (23)
C5X_2022_INT (20)

Reviews Citroen C5 X

4.2 (4 Reviews)
rate
Flament
13 Jun 2026, 13:54:21

Value for money / comfort, space unbeatable — C5 X Shine, 4‑cylinder petrol with options... heated, electrically adjustable programmable seat, 2 years, 12,000 km, €23,000

Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Safety
Practicality / Trunk & Everyday Use
Value for Money

Mercedes B Class

The Mercedes B-Class is a smart, grown-up compact people carrier that dresses everyday practicality in a near‑premium polish, perfect for buyers who want comfort and a classy badge without the theatrics. It won’t set your pulse racing on a back road, but it will make school runs, commutes and grocery hauls feel pleasantly civilized — a reliable, slightly posh companion for real life.

details
18C0947_011
18C0947_009
18C0953_005
18C0953_035
18C0947_044

Reviews Mercedes B Class

4.9 (5 Reviews)
rate
Peter
5 Mar 2026, 05:51:19

My wife and I have been driving a Mercedes W247 200d for seven years now, with 93,000 km on the clock. The car is very comfortable even on long trips and economical. At the last service the pads of the electric parking brake were replaced; otherwise no repairs. We love this car.

How do you mainly use this car? (optional): Family car
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money

Frequently compared as well

Citroen C4
Citroen C5 X
VS
The Citroen C4 and Citroen C5 X are both modern takes on comfortable, characterful French family cars but aim at slightly different buyers: the C4 is a compact, city‑friendly hatchback while the C5 X blends estate and SUV traits into a roomy fastback. Pick the C4 for easier parking, lower running …
BMW 2 Series Active Tourer
Mercedes B Class
VS
The BMW 2 Series Active Tourer and the Mercedes B‑Class are the two leading compact MPVs for buyers who need practical space without the bulk of an SUV. The 2 Series Active Tourer leans toward a driver-focused, sharper feel, while the B‑Class prioritizes passenger comfort, flexible packaging and a …
Citroen C5 Aircross
Citroen C5 X
VS
Citroen C5 Aircross and Citroen C5 X go head-to-head: compare performance, space, features and price in one quick overview to see which model suits your daily driving, budget and lifestyle better. A clear, side-by-side look helps you make the smarter choice. || Unsure whether the Citroen C5 …
Citroen C5 X
Peugeot 408
VS
In the competitive crossover segment, the Citroën C5 X and Peugeot 408 both demonstrate distinctly French flair, yet cater to different driving experiences. The Citroën C5 X stands out with its avant-garde design and emphasis on comfort, offering a smooth and plush ride ideal for long journeys. …
Mercedes B Class
VW Golf
VS
Mercedes B Class and VW Golf go head-to-head: compare performance, space, features and price in one quick overview to see which model suits your daily driving, budget and lifestyle better. A clear, side-by-side look helps you make the smarter choice. || Unsure whether the Mercedes B Class or the …
Mercedes B Class
Mercedes C-Class Saloon
VS
The Mercedes B-Klasse and C-Klasse Limousine are distinct in their appeal, catering to different automotive preferences. The B-Klasse offers a spacious interior and versatility ideal for family-oriented buyers, while the C-Klasse Limousine crafts a more luxurious experience with its sleek design …
Mercedes B Class
Mercedes CLA Coupe
VS
Mercedes B Class and Mercedes CLA Coupe go head-to-head: compare performance, space, features and price in one quick overview to see which model suits your daily driving, budget and lifestyle better. A clear, side-by-side look helps you make the smarter choice. || Unsure whether the Mercedes B …
Mercedes B Class
Mercedes E-Class
VS
Mercedes B Class and Mercedes E-Class go head-to-head: compare performance, space, features and price in one quick overview to see which model suits your daily driving, budget and lifestyle better. A clear, side-by-side look helps you make the smarter choice. || Unsure whether the Mercedes B Class …
Citroen C5 X
Mercedes B Class

Costs and Consumption
Price
39,400 £
Price
33,100 - 52,500 £
Consumption L/100km
5.1 L/100km
Consumption L/100km
5.1 - 6.9 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
116 g/km
co2
133 - 156 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Estate
Body Type
MPV
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
1,591 kg
Curb weight
1,405 - 1,565 kg
Trunk capacity
545 L
Trunk capacity
445 - 455 L
Length
-
Length
-
Width
1,815 mm
Width
1,796 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
399 kg
Payload
515 - 550 kg

Engine and Performance
Engine Type
Petrol MHEV
Engine Type
Petrol MHEV, Diesel
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Dual-Clutch Automatic
Transmission Detail
Dual-Clutch Automatic
Drive Type
Front-Wheel Drive
Drive Type
Front-Wheel Drive, All-Wheel Drive
Power HP
145 HP
Power HP
116 - 238 HP
Acceleration 0-100km/h
10.4 s
Acceleration 0-100km/h
6.5 - 10 s
Max Speed
-
Max Speed
-
Torque
230 Nm
Torque
200 - 400 Nm
Number of Cylinders
3
Number of Cylinders
4
Power kW
107 kW
Power kW
85 - 175 kW
Engine capacity
1,199 cm3
Engine capacity
1,332 - 1,991 cm3

General
Model Year
2025
Model Year
2025
CO2 Efficiency Class
D
CO2 Efficiency Class
D, E, F
Brand
Citroen
Brand
Mercedes-Benz
What drive types are available for the Citroen C5 X?

Available configurations include Front-Wheel Drive.

DriveDuel uses data analysis and artificial intelligence to evaluate vehicle data and create content. Content is regularly reviewed and improved. The displayed prices are estimates based on German list prices, adjusted to the respective country’s VAT. Country-specific registration taxes are not included. This information is not legally binding.